Table 1.
Results of glucosinolates in cold-pressed rapeseed cake (CPR).
Name of the Compound | Formula | M | [M − H]− | Characteristic Fragments | Fragment 96/97 Ratio | RT | Conc. |
---|---|---|---|---|---|---|---|
(min) | |||||||
2-Hydroxy-3-butenyl glucosinolate (progoitrin) | C11H19NO10S2 | 389.0460 | 388.0389 | 96.9595 | 1: 2 | 2.26 | 1014 ± 56 mg/kg |
259.0183 | (2.6 mmol/kg) | ||||||
2-Propenyl glucosinolate (sinigrin) | C10H17NO9S2 | 359.0287 | 358.0287 | 96.9586 | 1: 2 | 2.92 | 3.6 ± 0.09 |
mg/kg | |||||||
259.0012 | (0.01 mmol/kg) | ||||||
p-Hydroxybenzyl glucosinolate (sinalbin) | C14H19NO10S2 | 425.0460 | 424.0387 | 96.9595 | 1: 4 | 4.39 | 21.7 ± 2.2 |
259.0106 | mg/kg | ||||||
(0.05 mmol/kg) | |||||||
2-Hydroxy-4-pentenyl glucosinolate (gluconapoliferin) | C12H21NO10S2 | 403.0620 | 402.0549 | 96.9602 | 1: 3 | 4.98 | 114.8 * ± 8.0 |
259.0130 | mg/kg | ||||||
(0.28 mmol/kg) | |||||||
Glucoalyssin | C13H25NO10S3 | 451.0660 | 450.0586 | 96.9602 | 1: 2 | 5.51 | 52.1 * ± 0.04 |
259.0079 | mg/kg | ||||||
(0.12 mmol/kg) | |||||||
3-Butenyl glucosinolate (gluconapin) | C11H19NO9S2 | 373.0510 | 372.0439 | 96.9601 | 1: 3 | 5.93 | 2413 ± 27 |
259.0146 | mg/kg | ||||||
(6.5 mmol/kg) | |||||||
2-Methylpropyl glucosinolate/butyl glucosinolate | C11H21NO9S2 | 375.0670 | 374.0598 | 96.9523 | 1: 3 | 10.2 | 16.3 * ± 1.1 |
259.0247 | mg/kg | ||||||
(0.04 mmol/kg) | |||||||
4-Pentenyl glucosinolate | C12H21NO9S2 | 387.0670 | 386.0598 | 96.9601 | 1: 3 | 12.3 | 23.7 * ± 1.7 |
(glucobrassicanapin) | 259.0124 | mg/kg | |||||
(0.06 mmol/kg) | |||||||
4-Methyltiobutyl glucosinolate | C12H23NO9S3 | 421.0540 | 420.0472 | 96.9602 | 1: 3 | 15.0 | <LOQ |
259.0137 | |||||||
2-Phenylethyl glucosinolate (gluconasturtiin) | C15H21NO9S2 | 423.0670 | 422.0597 | 96.9608 | 1: 3 | 20.2 | 22.0 ± 0.8 |
259.0075 | mg/kg | ||||||
(0.05 mmol/kg) | |||||||
Methylpentyl glucosinolate | C13H25NO9S2 | 403.0990 | 402.0915 | 96.9604 | 1: 2 | 24.2 | 31.7 * ± 2.2 |
259.0098 | mg/kg | ||||||
(0.08 mmol/kg) | |||||||
Methylpentyl glucosinolate | C13H25NO9S2 | 403,098 | 402.0911 | 96.9591 | 1: 2 | 24.7 | 19.5 * ± 1.4 |
259.0118 | mg/kg | ||||||
(0.05 mmol/kg) | |||||||
Methylpentyl glucosinolate | C13H25NO9S2 | 403,099 | 402.0913 | 96.9627 | 1: 2 | 25.7 | 11.5 *± 0.8 |
mg/kg | |||||||
(0.03 mmol/kg) | |||||||
Neoglucobrassicin | C17H22N2O10S2 | 478.073 | 477.0657 | 96.9605 | 1: 3 | 26.6 | <LOQ |
259.0131 | |||||||
446.0503 | |||||||
Total determined glucosinolates | 3740 ± 261 mg/kg | ||||||
(9.9 ± 0.7 mmol/kg) |
* The results were expressed as sinigrin equivalents.